import numpy as np
score=np.array([
    ["12",34,55,31],
    [12,34,"55",31],
    [12,34,55,31],
    [12,34,55,31],
    [12,34,55,31],
    [12,34,55,31],
    [12,34,55,31]
],dtype=np.string_)
print(score)
print(score.shape)
print(score.ndim)
print(score.size)
print(score.itemsize)
print(score.dtype)
